Further increases in petrol prices are predicted as Australia’s unleaded benchmark price scaled a 10-month high of almost $100 a barrel in the past week.

While the continued signs of a recovery in the global economy had been great news for share market investors, the same could not be said for motorists, Commonwealth Securities economist Savanth Sebastian said.

The Australian Institute of Petroleum’s weekly report showed the unleaded petrol prices rose by an average 1.9 cents per litre in the past week to 124.5 cents.

The average metropolitan price rose by 2.6 cents a litre to 124.2 cents, while the regional average price rose by 0.7 cents to 125.1 cents.

“The glut of oil inventory on global markets is not putting downward pressure on prices,” Mr Sebastian said, adding traders and investors were focussed on the recovery story.

Even a strong Australian dollar has not been able to significantly absorb the rally in oil prices.

This resulted in the benchmark for Australian unleaded petrol – the Singapore gasoline price – rising to a 10-month high of $99.70 from $97.33 in the past week.

“If there is any consolation for motorists, it is that the rise in pump prices is likely to be rather sedate,” Mr Sebastian said.

“The petrol price will rise over the next fortnight, but only modestly, up around three to five cents a litre.”